Description

N,N'-Bis[3-(Triethoxysilyl)Propyl]Ethylenediamine is a high-purity, bifunctional organosilane coupling agent that serves as a critical molecular bridge between inorganic substrates and organic polymers. Its value lies in its dual functionality, where the amine groups provide reactivity with organic resins and the hydrolyzable ethoxysilyl groups bond to glass, minerals, and metals. This compound is essential for formulators and manufacturers in the composites, adhesives, coatings, and rubber industries seeking to enhance interfacial adhesion, mechanical properties, and durability in their products.

Application

• Glass Fiber Reinforcements: As a key sizing agent for fiberglass, improving the wet-out and adhesion between glass fibers and polymer matrices (e.g., epoxy, polyester, nylon) in composite materials.
• Mineral-Filled Composites: Surface treatment for fillers like silica, clay, and talc to improve dispersion and bonding within plastic and rubber compounds, reducing viscosity and increasing mechanical strength.
• Adhesives and Sealants: An adhesion promoter in epoxy, polyurethane, and silicone-based formulations, enhancing bond strength to difficult substrates like glass, metals, and painted surfaces.
• Coatings and Inks: Used to improve the adhesion, scratch resistance, and corrosion protection of primers, paints, and inks on metal and glass surfaces.
• Rubber Compounding: Acts as a coupling agent in silica-filled tire tread and industrial rubber goods, improving abrasion resistance, tensile strength, and reducing rolling resistance.
• Surface Modification: For creating amine-functionalized surfaces on nanoparticles (e.g., silica, alumina) for further chemical grafting in advanced material synthesis.

Basic Information

Product Name	N,N'-Bis[3-(Triethoxysilyl)Propyl]Ethylenediamine
CAS No.	30858-91-4
Molecular Formula	C20H48N2O6Si2
Molecular Weight	468.78 g/mol
Synonyms	Bis(3-triethoxysilylpropyl)ethylenediamine; N-(3-Triethoxysilylpropyl)ethylenediamine triethoxysilane; 1,2-Ethanediamine, N,N-bis[3-(triethoxysilyl)propyl]-; Ethylenediamine, N,N-bis(3-triethoxysilylpropyl)-; Silane A-1120 (common trade name); Aminoethylaminopropyltriethoxysilane (mixture nomenclature); 3-[2-(3-Triethoxysilylpropylamino)ethylamino]propyltriethoxysilane; AEAPTES
EINECS	250-349-1

Quality Control

Our production of N,N'-Bis[3-(Triethoxysilyl)Propyl]Ethylenediamine adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analysis including assay, identity confirmation, and impurity profiling. Certificates of Analysis (COA) detailing all test results are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC or Titration)	≥ 95.0%
Refractive Index (n20/D)	1.435 - 1.445
Density (g/mL, 25°C)	1.020 - 1.040
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.